FIELD: agriculture.
SUBSTANCE: method of production of complex fertiliser comprises mixing phosphoric acid with urea, neutralisation of phosphate-urea solution with ammonia to obtain the pulp and subsequent granulation and drying of the finished product at a temperature no higher than 85°C. At that, prior to neutralisation in the phosphate-urea solution the MgO-containing compound is added in a ratio of MgO:P2O5=(0.02÷0.1):1.
EFFECT: invention enables to provide granular compound fertilisers containing partially nitrogen in the amide form, having low caking ability and hygroscopicity.
4 cl, 6 ex
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